Lake Pontchartrain
…but only a slight one, as its passage to the open sea is narrow. The lake was named in 1699 by the French explorer Pierre Le Moyne d'Iberville for Louis Phélypeaux, comte de Pontchartrain, a minister under Louis XIV. It connects to the Gulf of Mexico through the Rigolets strait and Chef Menteur Pass by way of Lake Borgne, and receives…